School day structure could benefit children's health

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Having a structured environment for children, whether during school days or when stuck in quarantine as the COVID-19 pandemic continues, could benefit children's health, according to new research from the University of Central Florida.

In a study of more than 50 rural schoolchildren over the course of two weeks, researchers found that behaviors that lead to obesity—like too much sedentary behavior or screen time—dropped on school days compared to non-school days, while amounts of activity increased. The results were published recently in the journal Childhood Obesity.

The findings are important because more than 20 percent of U.S. children ages 6 to 11 are obese, which could lead to problems such as type 2 diabetes or other diseases, according to the U.S. Centers for Disease Control and Prevention.

The researchers focused on because they are at increased risk for obesity compared to their urban-dwelling counterparts. Additionally, rural children's obesogenic behaviors have not been studied as much, says Keith Brazendale, an assistant professor in UCF's Department of Health Sciences and the study's lead author.

These behaviors can include low physical activity, poor diets, irregular sleep and excess screen and media time.

The researchers used wristband accelerometers to compare the students' physical activity and sleep on school and non-school days in addition to diaries of daily activities, diet and screen time that were recorded by the parents.

They found that children accumulated an average of 16 additional minutes of moderate-to-vigorous physical activity per day on school days compared to non-school days.

Furthermore, students reduced their average daily sedentary time by about an hour each day and their by about an hour and half each day on school days compared to non-school days.

In a separate study of a sub-sample of the rural children, the researchers found that rural children exhibited accelerated weight gain during five months of home quarantine due to the closure of schools and community-operated programs.

"This supports the benefit of attending schools and programs," Brazendale says.

To combat obesogenic behaviors on non-school days or during quarantine, some sort of structured program, or at least a structured schedule for children on those days is recommended, Brazendale says.

"It's not necessarily the program itself that always provides the direct benefit, but the presence of 'attending something' seems to shape behaviors outside of the program's operating hours and almost sets a default schedule for the day for the child, like when they wake up or go to bed, or when they eat," Brazendale says.

The researcher specializes in examining elementary school-aged children's obesogenic behaviors during different times of the year, especially those from low-income and minority populations.

His research and that of others' suggests that children's behaviors are healthier when they have consistent routine and structure in their day-to day lives, such as on days compared to other times when structure is not necessarily as present, such as in the summer or on weekends.

He says that even on rainy days or when it's not safe to go outside, organizing a plan of activities—even if they take place in the home—can be a good way to keep children engaged in healthy consistent routines.

"This means maybe having a very loose schedule that has time for children's snack, free play time, maybe some indoor exercises that don't require a lot of space such as aerobics, dancing to music, or even yoga," he says. "I also encourage rule-setting around screen and media time, especially in the evening as bedtime approaches, as this can be beneficial for the child."

The U.S. Department of Health and Human Services recommends that and adolescents ages 6 through 17 do 60 minutes or more of moderate-to-vigorous daily. Screen should be limited to one to two hours a day, according to the CDC.


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More information: Keith Brazendale et al, Obesogenic Behaviors of Rural Children on School and Nonschool Days, Childhood Obesity (2021). DOI: 10.1089/chi.2021.0084
Journal information: Childhood Obesity

Citation: School day structure could benefit children's health (2021, September 1) retrieved 7 December 2021 from https://medicalxpress.com/news/2021-09-school-day-benefit-children-health.html
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